Burner.



W. E. McGOY.

BURNER.

APPLIOATIQH IILEI) JUNE 15, 1910.

13225861 Patented Apf. 9, 1912.

WITNESSS I I W l COLUMBIA PLANOGRAPl-l cq WASRINQTON. D. c.

onrrnn- STATES PATENT onnion.

WILLARD E MCCOY, OF EAST LIVERPOOL, OHIOJ.

BURNER.

To all whom it may concern:

Be it known that I, WILLARD E. MCCOY, a citizen of the United States ofAmerica, residing at East Liverpool, in the county of Columbiana andState of Ohio, have invented certain new and useful Improvements inBurners, of which the following is a specification, reference being hadtherein to the accompanying drawing.

This invention relates to burners specially designed for kilns, and theinvention aims to provide a burner that will produce a high degree ofheat with a small expenditure of gas.

The above object is attained by a me chanical construction consisting ofcomparatively few parts that are simple, durable, easy to assemble andinexpensive to manufacture, and the mechanical construction will behereinafter specifically described and then claimed.

Reference will now be had to the drawing forming a part of thisspecification, wherein there is illustrated a preferred embodiment ofthe invention, but it is to be understood that the structural elementsthereof are susceptible to such changes as fall within the scope of theappended claim.

In the drawing :Figure 1 is an elevation of the burner, Fig. 2 is alongitudinal sectional view of the same, and Fig. 3 is an end view ofthe primary mixer.

The reference numeral 1 denotes the wall of a kiln, oven or structure inwhich a high degree of heat is to be maintained. The wall 1 is providedwith a cylindrical opening 2 and in the opening 2 is mounted an airinlet pipe 3, constituting a secondary air mixer.

4 denotes a gas supply pipe adjacent to the outer side of the wall 1 andconnected to theupper end of the pipe 4 is an elbow 5, and screwed intothe end of the elbow 5 is a reduction plug 6 and screwed into the end ofsaid plug is the reduced rearward 7 extension 7 of a primary mixer. Thismixer comprises a frusto-conically shaped shell 8 having the large endthereof provided with a spider 9 which is formed integral with theextension 7. The forward end of the extension 7 terminates in a nipple10 within the shell 8, and the opening 11 of said I nipple is of a lessdiameter than the open- Specification; 0f- I-.etters Patent.

Application filed June 15, 1910.

Patented Apr. 9, 1912 Serial No. 566,976.

ing 12 of the extension 7, the opening 11 of the nipple 10 beingapproximately onethird the diameter of the supply pipe. 4. Screwed inthe small end of the shell 8 is a sleeve 13 and screwed into the forwardend of this sleeve is a burner pipe 14, said pipe extendingapproximately half way into the pipe 3 and approximately one-third thediameter thereof, thereby providing an annular air inlet space 15 at theouter end of the pipe 8.

It is through the medium of the nipple 10 that the gas is admitted tothe sleeve 13 in the form of a jet under exceedingly high pressure andthis jet produces a suction of air in the large end of the shell 8 thatcauses the air to thoroughly commingle with the jet of gas as it entersthe burner pipe 14. The gas from the end of the pipe 14 produces asuction of air in the outer end of the pipe 3, consequent-1y there is asecond oommingling of air and gas at the inner end of the pipe 8. It isthrough the medium of the reducing elements of the burner thatsufficient pressure is produced whereby a large quantity of air can becommingled with the gas, it being necessary to introduce air first atthe primary mixer then at the secondary mixer in order to insure athorough commingling of the air and gas before reaching the point ofignition.

What I claim is A burner comprising an elbow for connection to a gassupply pipe, a cylindrical reducing plug connected to the elbow andhaving interior threads, a frusto-conically shaped hollow member havingits enlarged end provided with anintegral spider and constituting aprimary air mixer, said spider having an inwardly projecting nipple anda centrally disposed opening communicating with the nipple, said memberfurther including a rearwardly extending, hollow, annular elementintegral with said spider and communicating with said opening, saidelement having interior threads engaging with the interior threads ofthe reducing plug, said member provided at its inner end with interiorthreads, said opening being of less diameter than the inner diameter ofsaid element, an exteriorly and interiorly threaded inwardly extendingsleeve, said sleeve at its outer end engaging the threads of saidmember, a burner pipe having its outer end formed with pe- In testimonywhereof I aflix my signature ripheral threads for engagement with the inthe presence of two witnesses. interior threads of said sleeve, and apipe of relatively large diameter surrounding WILLARD MCCOY andprojecting from the free end of said Witnesses: burner pipe andconstituting a secondary S. J. ALLISON, air mixer. STEPHEN HAGUE.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents,

Washington, D. G.

